Low latency and/or enhanced component carrier discovery for services and handover

A method of wireless communication by a source base station, comprising:

• receiving an indication of one or more enhanced capabilities of a user equipment (UE);
• determining support for the one or more enhanced capabilities of the UE at a target base station;
• and
• performing one or more handover-related procedures to handover the UE from the source base station to the target base station based, at least in part, on the one or more enhanced capabilities of the UE and the support for the one or more enhanced capabilities of the UE at the target base station, wherein:
• performing the one or more handover-related procedures comprises participating in a Quality of Service (QoS) negotiation based in part on the support for the one or more enhanced capabilities of the UE at the target base station;
• participating in the QoS negotiation comprises transmitting, to the target base station, a handover request comprising a QoS request that indicates a plurality of QoS class identifiers (QCIs) if the determination is that the one or more enhanced capabilities of the UE are supported at the target base station, wherein at least one of the plurality of QCIs indicates a plurality of alternative QoS requirements;
• and
• the one or more enhanced capabilities of the UE comprise at least one of:
• a capability of the UE to perform the handover with low latency relative to devices that lack the one or more enhanced capabilities;
• or
• a capability of the UE to support enhanced component carrier (eCC) operation.

A method of wireless communication by a target base station, comprising:

• receiving an indication of one or more enhanced capabilities of a user equipment (UE);
• and
• performing one or more handover-related procedures to handover the UE from a source base station to the target base station based, at least in part, on the one or more enhanced capabilities of the UE and support for the one or more enhanced capabilities of the UE at the target base station, wherein:
• performing the one or more handover-related procedures comprises participating in a Quality of Service (QoS) negotiation with the UE based in part on the support for the one or more enhanced capabilities of the UE at the target base station;
• participating in the QoS negotiation with the UE comprises receiving, from the UE, a radio resource control (RRC) connection reestablishment request comprising a QoS request that indicates a plurality of QoS class identifiers (QCIs), wherein at least one of the plurality of QCIs indicates a plurality of alternative QoS requirements;
• and
• the one or more enhanced capabilities of the UE comprise at least one of:
• a capability of the UE to perform the handover with low latency relative to devices that lack the one or more enhanced capabilities;
• or
• a capability of the UE to support enhanced component carrier (eCC) operation.

A user equipment (UE), comprising a transmitter, at least one processor and a memory coupled to the at least one processor with instructions stored thereon, wherein the at least one processor is configured to:

• indicate, via the transmitter, one or more enhanced capabilities of the UE to at least one source base station;
• and
• perform one or more handover-related procedures based, at least in part, on the one or more enhanced capabilities of the UE and support for the one or more enhanced capabilities of the UE at a target base station by:
• determining a timing advance (TA) of the target base station, based on one or more parameters of the target base station;
• skipping a random access procedure with the target base station;
• and
• establishing a connection with the target base station based on the TA, after skipping the random access procedure, wherein the one or more enhanced capabilities of the UE comprise at least one of:
• a capability of the UE to perform handover with low latency relative to devices that lack the one or more enhanced capabilities;
• or
• a capability of the UE to support enhanced component carrier (eCC) operation.